06-03-2011 04:20 AM - edited 03-06-2019 05:19 PM
The setup is as follows
Cisco 3750 gig port is connected to Cisco 1200 AP Fa port. totally 3 APs are connected. All APs use PoE.
The problem is
I am getting the following logs in switch. But there is no corresponding logs in AP. I am getting theses logs very frequently for 1 AP and seldom for another AP. no log for third AP.
Jun 2 15:42:42 IST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/14, changed state to up
Jun 2 15:46:39 IST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/14, changed state to down
Jun 2 15:46:41 IST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/14, changed state to up
Jun 2 15:50:46 IST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/14, changed state to down
Jun 2 15:50:48 IST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/14, changed state to up
Jun 2 15:54:37 IST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/14, changed state to down
Jun 2 15:54:39 IST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/14, changed state to up
Jun 2 16:01:07 IST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/14, changed state to down
Jun 2 16:01:09 IST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/14, changed state to up
Jun 2 16:05:13 IST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/14, changed state to down
Jun 2 16:05:15 IST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/14, changed state to up
Jun 2 16:14:12 IST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/14, changed state to down
Jun 2 16:14:14 IST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/14, changed state to up
Jun 2 16:20:53 IST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/14, changed state to down
Jun 2 16:20:55 IST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/14, changed state to up
Jun 2 16:21:01 IST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/14, changed state to down
Jun 2 16:21:02 IST: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/14, changed state to down
Jun 2 16:21:35 IST: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/14, changed state to up
Please suggest how to solve this.
06-03-2011 09:59 AM
check cabling for layer 1 issues . Use the TDR function in the 3750 to check drop to AP .
06-06-2011 03:05 AM
Thanks a lot for your reply glen
When I run the cable diagnostics, I get the following results,
Interface Speed Local pair Pair length Remote pair Pair status
--------- ----- ---------- ------------------ ----------- --------------------
Gi1/0/14 100M Pair A 3 +/- 4 meters Pair A Normal
Pair B 3 +/- 4 meters Pair B Normal
Pair C 0 +/- 4 meters Pair C Open
Pair D 3 +/- 4 meters Pair D Normal
Does this result indicates any cable issue?
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: